I want to list all files and folders that my program has access to and write them to a text file. How would I get the list? I need a way that will catch or not throw UnauthorizedAccessExceptions on folders that are not accessible.
Please try using the code:
private static IEnumerable<string> Traverse(string rootDirectory)
{
IEnumerable<string> files = Enumerable.Empty<string>();
IEnumerable<string> directories = Enumerable.Empty<string>();
try
{
// The test for UnauthorizedAccessException.
var permission = new FileIOPermission(FileIOPermissionAccess.PathDiscovery, rootDirectory);
permission.Demand();
files = Directory.GetFiles(rootDirectory);
directories = Directory.GetDirectories(rootDirectory);
}
catch
{
// Ignore folder (access denied).
rootDirectory = null;
}
if (rootDirectory != null)
yield return rootDirectory;
foreach (var file in files)
{
yield return file;
}
// Recursive call for SelectMany.
var subdirectoryItems = directories.SelectMany(Traverse);
foreach (var result in subdirectoryItems)
{
yield return result;
}
}
Client code:
var paths = Traverse(@"Directory path");
File.WriteAllLines(@"File path for the list", paths);
Try
string[] files = Directory.GetFiles(@"C:\\", "*.*", SearchOption.AllDirectories);
This should give you a array containing all files on the hard disk.
查看Directory.GetFiles()
和相关方法。
You can try with
var files = from file in Directory.EnumerateFiles(@"your Path", "*.*", SearchOption.AllDirectories)
select file;
Using Traverse that Serge suggested and the DriveInfo class you can have access to all files available to the pc.
DriveInfo[] allDrives = DriveInfo.GetDrives();
foreach (DriveInfo d in allDrives)
{
if (d.IsReady == true)
{
var paths = Traverse(d.Name);
File.AppendAllLines(@"File path for the list", paths);
}
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.